Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> SFI System [2GR-FXE] - Diagnostic Codes - (Hybrid) (1 Of 3) >> SFI System >> DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected [02/2014 - 11/2015] >> Typical Malfunction Thresholds